Minimum Detectable Change of Visual Acuity Measurements Using ETDRS Charts (Early Treatment Diabetic Retinopathy Study)
Bibliographic Data
| ID | 15475924 |
|---|---|
| Authors | María Carmen Sánchez‐González (0000-0002-9453-8615, Universidad de Sevilla, corresponding author), Raquel García-Oliver (Universidad de Sevilla), José‐María Sánchez‐González (0000-0003-0450-7717, Universidad de Sevilla), María‐José Bautista‐Llamas (0000-0001-8317-5014, Universidad de Sevilla), José‐Jesús Jiménez‐Rejano (0000-0003-3358-3305, Universidad de Sevilla), Concepción De‐Hita‐Cantalejo (0000-0003-0382-2053, Universidad de Sevilla), Concepción De-Hita-Cantalejo (Universidad de Sevilla) |
| Year | 2021 |
| Volume | 18 |
| Issue | 15 |
| Pages | 7876-7876 |
| Publication date | 2021-07-25 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph18157876 |
| PMID | 34360169 |
| OpenAlex | W3184352575 |
| Language | EN |
| References cited | 25 |
In our work, we determined the value of visual acuity (VA) with ETDRS charts (Early Treatment Diabetic Retinopathy Study). The purpose of the study was to determine the measurement reliabilities, calculating the correlation coefficient interclass (ICC), the value of the error associated with the measure (SEM), and the minimal detectable change (MDC). Forty healthy subjects took part. The mean age was 23.5 ± 3.1 (19 to 26) years. Visual acuities were measured with ETDRS charts (96% ETDRS chart no 2140) and (10% SLOAN Contrast Eye Test chart no 2153). The measurements were made (at 4 m) under four conditions: Firstly, photopic conditions with high contrast (HC) and low contrast (LC) and after 15 min of visual rest, mesopic conditions with high and low contrast. Under photopic conditions and high contrast, the ICC = 0.866 and decreased to 0.580 when the luminosity and contrast decreased. The % MDC in the four conditions was always less than 10%. It was minor under photopic conditions and HC (5.83) and maximum in mesopic conditions and LC (9.70). Our results conclude a high reliability of the ETDRS test, which is higher in photopic and high contrast conditions and lower when the luminosity and contrast decreases
Contrast (vision · Diabetes mellitus · Diabetic retinopathy · Mesopic vision · Photopic vision · Retinal · Scotopic vision · Vision test · Visual acuity · Computer Science · Medicine · Ophthalmology and Visual Impairment Studies · Retinal Diseases and Treatments · Retinal Imaging and Analysis · Artificial Intelligence · Ophthalmology · Optometry
| Highly cited | No |
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